Wiring Change-Over Register Dx And Control Module Dx; Commissioning; Setting The Control Module Dx - Helios AIR1-SM DX Installation And Operating Instructions Manual

Installation and Operating Instructions
EN
m
CAUTION
Control module AIR1-SM DX

276 Wiring change-over register DX and control module DX

Overview of input and output signals
Terminal Name
1-2 Ventilation active
3-4 Cooling activate /
cooling stage 1
5-6 Cooling stage 2
7-8 Heating activate
9-10 0-10 V heating/
cooling
11-12 DX alarm
13-14 Defrosting alarm
The signals are provided in 24 V DC, if necessary use on-site relays for adaptation to your system The DX
alarms must be guaranteed with a potential-free contact

277 Commissioning

Adjust the settings in the commissioning assistant after installing the change-over register DX. Refer to the correspon-
ding chapter of the installation and operating instructions for the respective AIR1 ventilation unit.
The 1-stage DO or 2-stage DO control mode must be configured in the commissioning assistant. If the proportional
control signal AO (0-10 V) is to be used, the 1-stage digital output DO must be selected in the commissioning assistant.

278 Setting the control module DX

Select a suitable AIR1 ventilation unit which is already installed.
Ceiling units plate
Choose configuration
None
Floor units plate
Choose configuration
None
Floor units rotary
Choose configuration
None
Signal type Connection requirement
DO Depends on control
module DX of the cooling
system.
DO Always required if cooling
is necessary.
DO Required if 2-stage digital
signal processing is ne-
cessary.
DO Always required if heating
is necessary.
AO Required if temperature
control via 0-10 V signal is
necessary.
DI Optional alarm input.
DI Necessary for heating
operation.
#
OK OK OK OK
$
#
OK OK
OK OK
$
#
OK OK
OK OK
$
7
Function
24 V always present when
fans in operation.
24 V present when cooling is
required. Serves as cooling
start signal.
24 V present when there is a
higher cooling requirement.
24 V present when heating is
required. Serves as heating
start signal.
Continuously variable 0-10
V signal present depending
on the cooling or heating
requirement.
As soon as control module
DX alarm is active, the AIR1
unit will issue the alarm.
The fans are deactivated du-
ring the defrosting process.